OpenTechnical

OT-2026-000061990

Publication integrity record

Three pad foam vacuum gripper, three outlet manifold, common isolation valve, single stage ejector, vented after set-down, on a tool changer

This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000061990) never changes.

Identity and time

Publication numberOT-2026-000061990 · never reused
Internal UUID01a0ae8b-b8ae-77f8-9635-9a7ac6682374 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:46:27.528336Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000061990
StatusPUBLIC

Content hashes

Canonical text141e2e25a6f14a96e1dc4f1185e687d2225633c939ed46dad4b964d4bd58ee2d
Markdown7245bfd97f8c9f16a1dbfb9c447cdcb408cc8a12191e4006a4eb2618106f36d1
PDF
Publication pagead2f0807ed7ecb97b3feb3115d2761a9842da9cb8c69be10e71967c16f555b0e
Manifest09372bf556d807cef8ccc23cae9af8a82c7868731d5546dcd10d9ede13e4a1f4

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
SignatureDUgpldCtXpJ75fWW/icgwTlB6SgpqAZV3HjLeRu1bKMZ69FYUzSxLnLkQMbBkjlDJoFtxJSPsQCrnR+Cw494Bw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...

Independent retrieval

2026-09-17T10:40:55.191960ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061990
observed ad2f0807ed7ecb97b3feb3115d2761a9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:40:55.163936ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061990/manifest.json
observed 09372bf556d807cef8ccc23cae9af8a8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:40:55.138743ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061990/publication.md
observed 7245bfd97f8c9f16a1dbfb9c447cdcb4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:40:55.112593ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061990/publication.txt
observed 141e2e25a6f14a96e1dc4f1185e687d2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139

Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.

Independent archive

External archivePending Canonical URLs are submitted to an independent archive in batches.

A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.

Third-party custody

Custody packagePending Custody packages are produced weekly.